NAME
Module::Pluggable::Ordered - Call module plugins in a specified order
SYNOPSIS
package Foo;
use Module::Pluggable::Ordered;
Foo->call_plugins("some_event", @stuff);
Meanwhile, in a nearby module...
package Foo::Plugin::One;
sub some_event_order { 99 } # I get called last of all
sub some_event { my ($self, @stuff) = @_; warn "Hello!" }
And in another:
package Foo::Plugin::Two;
sub some_event_order { 13 } # I get called relatively early
sub some_event { ... }
DESCRIPTION
This module behaves exactly the same as "Module::Pluggable", supporting
all of its options, but also mixes in the "call_plugins" method to your
class. "call_plugins" acts a little like "Class::Trigger"; it takes the
name of a method, and some parameters. Let's say we call it like so:
__PACKAGE__->call_plugins("my_method", @something);
"call_plugins" looks at the plugin modules found using
"Module::Pluggable" for ones which provide "my_method_order". It sorts
the modules numerically based on the result of this method, and then
calls "$_->my_method(@something)" on them in order. This produces an
effect a little like the System V init process, where files can specify
where in the init sequence they want to be called.
SEE ALSO
Module::Pluggable, Class::Trigger
AUTHOR
Simon Cozens, ; please report bugs via the CPAN Request
Tracker.
COPYRIGHT AND LICENSE
Copyright 2004 by Simon Cozens
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.